注ちゅう意いを怠おこたる

expression, godan verb (-ru)

be off one's guard; let one's attention lapse; be careless

Used when someone fails to pay proper attention, often leading to a mistake or accident. Common in warnings and self-reflection.

• 運うん転てん中ちゅうに注ちゅう意いを怠おこたると事じ故こにつながる。

  If you let your attention lapse while driving, it can lead to an accident.

• 彼かれは注ちゅう意いを怠おこたって、書しょ類るいにミスをした。

  He was careless and made a mistake in the documents.